Modifying the maintenance program of an aircraft

This page enables you to modify the maintenance program of a specific aircraft. Tell me more.

Select the “Edit Aircraft Specific Maint. Program” link in the “Associate Aircraft to Maintenance Program” page.

The “Edit Aircraft Specific Maintenance Program” page appears.

The system displays the following field:

Date Format

The format in which the date fields are displayed and to be entered, in this page. This format is displayed from the "User Preferences" business component based on the login user ID. In case the format is not defined, the system displays the date format from the "Enterprise Modeling" business component by default.

The system displays the following details in the “Aircraft Details” group box:

Aircraft Reg #	The registration number of the aircraft that is associated to the program.
Aircraft Model #	The aircraft model to which the aircraft belongs.
Sub Fleet #	The sub fleet number to which the aircraft belongs.

The system displays the following fields in the “Maintenance Program Information” group box:

Maintenance Program #	The maintenance program to which the aircraft is associated.
Revision #	The revision number of the program. The system retrieves the latest revision that is in an “Active” or “Fresh” status.
Program Desc.	The description of the program.
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Status	The status of the program, which can be “Fresh” or “Active”

Enter the following fields in the “Maintenance Program Details” multiline:

MPD Group

Use the drop-down list box to select the Maintenance Planning Document (MPD)Group. The system loads the drop-down list box with the active quick codes defined for MPD Group in the “Aircraft Maintenance Program” business component. The system defaults the previously saved value or leaves the field blank, if no value exists.

Work Unit #

The task, standard procedure, aircraft work package or component work package to be performed as part of the maintenance program (Alphanumeric, 30). Mandatory. The drop-down list displays Task, Standard Procedure, and Aircraft Work Package, if the “Multilevel Work Breakdown Structure” option is set as “Required” in the Common Masters business component. However, only “Task” is available, if the “Multilevel Work Breakdown Structure” option is set as “Not Required”. Select any one of the following options:

Task – The task must have been defined in the “Create Task” activity of the “Maintenance Task” business component.
Standard Procedure – The procedure must have been defined in the “Create Standard Procedure” activity of the “Maintenance Task” business component.
Aircraft Work Package – The aircraft work package must have been defined in the “Create Aircraft Work Package” activity.
Component Work Package – The component work package must have been defined in the “Create Component Work Package” activity of the “Component Maintenance Program” business component.

You can include only one instance of a task in an aircraft maintenance program The task you specify in this field must be in “Active” status. If the sequence, estimated time, work center, estimated man-hours and the priority values are available for the work unit in the multiline, data entry in this field is mandatory.

Help facility available.

Prog. Item Type

Use the drop-down list box to select any one of the following valid Program Item Types:

Block - Indicates the task is a block, which contains a group of tasks to be executed based on a schedule
Base - Indicates the task to be executed is associated to a block.
Perpetual - Indicates the task is to be executed while executing any other tasks on the aircraft.
As required - Indicates the task will be executed whenever required.
Event driven - Indicates the task will be executed based on the occurrence/triggering of an event
Non-block - Indicates the task to be executed is not associated to a block.
To be decided - Indicates the classification of the program item type for the task will be decided later.

The system defaults the previously saved value or leaves the field blank.

Default Exe. Priority

Use the drop-down list box to select the default execution priority of the task. The system loads the drop-down list box with the values ”Active", "Priority Codes" and “Quick Code Type” as defined in the “Common Masters” business component interacting with the current login OU.

The system defaults the previously saved value or leaves the field blank, if no value exists.

Note: It is mandatory to select a Default Exe. Priority, if you selected a value in the “Work Unit #” column.

Initiated/ Reset by

Use the drop-down list box to select any one of the following options:

Self Compliance - Indicates the task would be initiated/ reset on compliance of the same task. This implies that the compliance of this task is not dependant on any other task.
Related Task Compliance - Indicates the task, on compliance, would initiate/ reset another task available as part of the same program. The task which has to be initiated on compliance of a task is based on the “Initiate Schedule” relationship defined for that task, in the “Maintain Task Relationship” activity under the ”Maintenance Task” business component.

The system defaults the previously saved value or displays the value “Self Compliance”, if no saved value exists.

The system displays the following in the “Maintenance Program Details” multiline:

Parent Item #

The unique identifier of all the parent items of the task. The parent items are delimited by a comma separator.

Note: If the Program Item Type of the Task # is “Base”, the system fetches the related Block Task # as the Parent Item #. If multiple "Block" relationships are available for the 'Work Unit #', the system fetches all those Task # to the “Parent Item #” delimited by a comma.

If the Program Item Type of the Task # is '”Event Driven”, the system fetches the Event # of the Task #. Note that the parent item # will be blank for all other Program Item Types.

Execution Type	Use the drop-down list box to specify the execution type of the work unit, which could be one of the following:
	Major – Select this option to indicate that the work unit is a major check and must be sent to the hangar for maintenance.
	Minor – Select this option to indicate that the work unit must be executed as a part of line maintenance.

Note: Ensure that you specify at least one work unit for the maintenance program

Note: If you leave the above field blank, the system defaults the primary work center number on update.

Job Type

Use the drop-down list box to specify whether the work unit must be performed on the aircraft or on the components fitted to the aircraft. The system provides the following options:

Aircraft – Select this option to indicate that the work unit must be performed on the aircraft.
Onwing – Select this option to indicate that the work unit must be performed on components attached to the aircraft.

Note: If the job type is “Aircraft” or “Onwing” and if the work unit type is “Aircraft Work Package”, then ensure that the work unit number is valid for the specified aircraft model.

Enter the following fields:

Maintenance Type

Use the drop-down list box to specify the type of maintenance job that must be carried out as a part of the work unit. The system provides the options “Repair”, “Overhaul”, “Inspection” and “Others”. Do not leave this field blank if you have set the “Job Type” field to “Onwing”.

Position Code

The position code in the aircraft where the work unit must be performed (Integer). Ensure that the position code entered here has already been defined for the primary aircraft model and configuration class in the “Maintain Aircraft Model Configuration” activity of the “Configuration” business component and is in “Active” status.

Help facility available.

Level Code

The number identifying the level at which the position code occurs in the configuration class attached to the primary model (Decimal). Ensure that the level code entered here has already been defined for the primary aircraft model and configuration class in the “Maintain Aircraft Model Configuration” activity of the “Configuration” business component and is in “Active” status.

Help facility available.

Note: Ensure that you enter either the position code in the “Position Code” field, or the level code in the “Level #” field, if you have selected “OnWing” in the “Job Type” field.

If the position code alone is entered and if it is unique in the entire configuration, the system retrieves the level code corresponding to the position code, from the “Configuration” business component.

If the level code alone is entered, the system retrieves the position code for the level code, from the “Configuration” business component.

If you have entered both the position code and the level code, ensure that it is a valid combination defined for the primary aircraft model and configuration class in the “Maintain Aircraft Model Configuration” activity of the “Configuration” business component.

Eng. Doc#

The engineering document as a part of which the work unit was defined (Alphanumeric, 40). The engineering document must have been defined in the “Create Engineering Order” activity of the “Engineering Order” business component and must be in the “Released” status.

Help facility available.

Revision #

The revision number of the engineering document (Alphanumeric, 40).

Schedule Status

Use the drop-down list box to set the status of the schedule. Mandatory. The system provides the following options:

Fresh – Select this option to create a work unit.
Active – Select this option if you wish to activate the work unit.
Inactive – Select this option if you do not wish to carry out the work unit as a part of the maintenance program.
Terminated – Select this option to terminate the work unit.

The system displays the following field in the “Maintenance Program Details” multiline:

Execution Status

The execution status of the work unit in the maintenance program. The system displays one of the following:

Forecasted – When a forecast is generated for the work unit.
Dormant – When there is no next due date scheduled for the work unit.
Deferred – When the work unit is deferred during its execution.
As Required – When schedule information is not provided for the work unit.

The system leaves the field blank, if the execution of the work unit has been completed.

Enter the following field in the “Maintenance Program Details” multiline:

Long Term?

Use the drop-down list box to select any one of the following options:

Yes – Select this option to indicate that the forecasting of the work unit is for long term.
No - Select this option to indicate that the forecasting of the work unit is for short term.
Not Applicable – Select this option to indicate that neither long/ short term forecasts are applicable for the work unit.

The system defaults the previously saved values for existing work units and displays “Not Applicable” for new work units.

Note: Long/ Short Term Forecasting options could be defined only for the work units of ‘Prog. Item Type’ as “Block” or “Non-block”

Sch. Exec Rule	Use the drop-down list box to specify the schedule execution of the work unit. Mandatory. The system provides the following options: Earliest – Select this option to indicate that when two or more schedules are due for the work unit, the system must consider the earliest schedule. Latest – Select this option to indicate that when two or more schedules are due for the work unit, the system must consider the latest schedule.
Deferment Policy	Use the drop-down list box to specify the type of deferment policy for deferring or postponing the work unit when work orders are generated based on the maintenance program. Mandatory. The system provides the following options: Not Allowed – Select this option if you do not wish to allow deferment of the work unit. Allowed – Select this option if you wish to allow the deferment of the work unit along with the tasks and procedures defined for it. The system defaults the previously saved value or displays the value “Allowed” if no saved value exists.
Package Type	Use the drop-down list box to select the package type of the work unit. The system lists all the “active” package types for which the field “Process Parameter Defined?” is set as “Yes” in the “Common Masters” business component. The system leaves this field blank by default.
Expense Type	Use the drop-down list box to modify the expense type of the work unit. Mandatory. The system provides the following options: Revenue – Select this option if the cost incurred on the work unit is for routine maintenance activity and must be recorded as revenue cost. Capital – Select this option if the cost incurred on the work unit must be recorded as a capital cost.
Other References	Any other references based on which the work unit is specified for the maintenance program (Alphanumeric, 255).
Comments	Any additional information about the work unit (Alphanumeric, 255).
Work Center #	The work center where the work unit must be performed (Alphanumeric, 30). Data entry in this field is mandatory if a work unit is specified. The work center should have already been defined in the “Create Work Center” activity of the “Work Center” business component and should be in “Active” status. Help facility available

Note: If you leave the above field blank, the system considers the primary work center number defined for that work unit as the work center.

If the “Work Center Entry for Task” is set as “Mandatory” in the “Set Options” activity, the system ensures that a value is entered in Work center # column for the Work unit # - Seq # combination.

The system displays the following field in the “Maintenance Program Details” multiline:

MPD Item #

The Maintenance Planning Document number providing additional information pertaining to the task or standard procedure. This field will appear blank, if the “Work Unit Type” is set to “Aircraft Work Package” or “Component Work Package”.

Note: The system retrieves the “MPD Item #” for the “Work Unit #” and “Aircraft Model #” combination, from the “Maintenance Task” business component.

Enter the following field in the “Maintenance Program Details” multiline:

Seq #	The sequence in which the work unit should be performed as a part of the maintenance program (Integer). Mandatory. Ensure that the sequence number is positive and is unique in the multiline.
	If you leave the sequence number blank, the system automatically assigns a sequence number to each of the work units, in the order in which they are entered in the multiline, on clicking the “Edit Maintenance Program” pushbutton.

The system displays the following field:

Sch #

A schedule number generated by the system to uniquely identify the work unit specified in the maintenance program. Refer the example for more details.

The system displays the following field in the “Maintenance Program Details” multiline:

Source	The source from which the work unit details are updated. The system displays “Engg” to indicate that the work unit is updated from an engineering document.
Work Unit Desc	The description of the work unit.
Work Center Description	The description of the work center.

Check the box in the multiline, to mark the work unit for deletion.
Click the Delete icon in the toolbar above the multiline, to delete the selected work unit.

A If you wish to add more work units in the multiline and assign a sequence number for them, select the “Re-Number” pushbutton to rearrange the existing rows in the ascending order of the sequence number. The system regenerates the sequence number in multiples of five, thereby enabling you to specify the sequence number for the newly added work unit.

Click the “Get Base Tasks” pushbutton to retrieve the base tasks for the selected task.

Note : The Program Item Type must have been selected as “Block” for the selected record in the multiline.

The system retrieves tasks that share a Block relationship with the task (selected in the multiline) for the same primary model # as defined in the Maintenance Task component.

Enter the following fields in the “Approval Details” group box:

Regulatory Authority

Use the drop-down list box to specify the regulatory authority as a reference to the maintenance program. The system lists all the regulatory authorities defined in the “Create Regulatory Authority Codes” activity of the “Common Master” business component, which are in “Active” status.

The system displays the following field on clicking the “Create Maintenance Program” pushbutton:

Description	The description of the regulatory authority.
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Enter the following fields in the “Approval Details” group box:

Approval #	The approval number with reference to which the maintenance program is created (Alphanumeric, 30).
Date	The date on which the approval number was given (Date Format).
Other Details	Any other details furnished by the regulatory authority (Alphanumeric, 255).

Click the “Edit Maintenance Program” pushbutton to update the modified maintenance program for the aircraft.

If the Eng. doc reference # exists for the task, the system allows you to modify the following details of the Eng. Doc. task in the Maintenance Program, only if the process parameter “Allow modification of Eng. Doc. task in Maintenance Program” is set as “Allowed” in the “Define Process Entities” activity of the “Common Master” business component.

Program item type
Initiate Reset basis
Execution Type
Long Term?
Sch Exec Rule
Deferment Policy
Expense Type
Work Center
Click the “Confirm Maintenance Program” pushbutton to confirm the maintenance program.

Note: If you selected the “Program Item Type” as "Base", the system ensures that the Work Unit # is not duplicated for the Model #.

If you select the “Program Item Type” as any value other than "Block" or "Non-Block", the system saves the 'Long Term? field with the value "Not Applicable" irrespective of the value selected by the user for the Task # and Seq # combination. However, if 'Prog. Item Type' is selected as “Block" or "Non-Block", the system saves the value selected by the user in 'Long Term?' field for the Task # and Seq # combination.
The system confirms the maintenance program and sets the status of the program to “Confirm”. Further modifications to the program are not allowed.
On confirmation, the system changes both the ‘Association Status’ and the ‘Schedule Status’, from “Fresh” to “Active”.
If the Eng. doc reference # exists for the task and if the task attributes in the program are modified, the system allows you to confirm the Maintenance Program, only if the process parameter “Allow modification of Eng. Doc. task in Maintenance Program” is set as “Allowed” in the “Common Master” business component.
Click the “Cancel Maintenance Program” pushbutton to cancel the maintenance program.

Note: The system cancels the maintenance program and sets the status of the maintenance program to “Cancel”.

To proceed, carry out the following

Select the “Maintain Task Relationship” link at the bottom of the page to maintain relationship between a task and the related tasks.

Refer to “Maintain Task Relationship” online help for more details.

Select the “View Aircraft Schedule Summary Information” at the bottom of the page to view aircraft schedule summary information.
Select the “Edit Schedule Information” link at the bottom of the page to specify the schedule information for the maintenance program.
Select the “Edit Schedule Dates & Value for Aircraft” link at the bottom of the page to edit the scheduled dates and values for the maintenance program.
Select the “Edit References for Aircraft Program” link to specify reference document details based on which the maintenance program was created.
Select the “View Program Level References” link at the bottom of the page to view the reference documents specified for the maintenance program.
Select the “Upload Documents” link to upload documents/files associated with the aircraft maintenance program to the common repository.
Select the “View Associated Doc. Attachments” link to view documents/files associated with the aircraft maintenance program from the common repository.

Example: Assume that the following work units in the form of checks are defined for the maintenance program:

Work Units - A, 2A, B, C, B, A, 2B.

The system assigns schedule IDs for the checks as given below:

Work Units	Sch #
A	1
2A	1
B	1
C	1
B	2
A	2
2B	1

This enables easy identification of the work unit in the maintenance cycle.

Modifying the maintenance program of an aircraft – An overview

This page enables you to modify the maintenance program of a specific aircraft. The following details of the maintenance program can be modified:

4 The details of the work units that must be executed as a part of the maintenance program.

4 The approval details of the program.

Note: If the “Sub Fleet Security” field has been set to “Required” in the “Set Options” activity, ensure that the login user has the permission for the sub fleet to which the aircraft belongs.

Cancel the program

You can cancel the maintenance program in this page. On cancellation, the system cancels the maintenance program and sets the status of the maintenance program to “Cancel”.

Confirm the program

You can also confirm the maintenance program. Once the program is confirmed it cannot be modified further. The status of the program is set to “Confirm”. A confirmed program can be activated or returned for further modification in the “Approve Aircraft Maint. Program” activity.

Revise the program

If the maintenance program that is modified is in the “Fresh” status, the system modifies the details of the program and does not create a new revision of the program. If the status of the program that is modified is “Return”, the system modifies the details of the program, retains the same revision and sets the status of the program to “Fresh”. If this page is launched from the “Revise Aircraft Maint. Program” activity, the system creates a new revision of the program with the modified details and sets the status of the program to “Fresh”